Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quando o Time da Casa era Sydney, qual foi a pontuação do time Visitante?
 ###Tabelas: CREATE TABLE mean_free_path_in_kinetic_theory (mean_free_path_in_kinetic_theory_id AUTO_INCREMENT PRIMARY KEY, Vacuum range VARCHAR, Pressure in hPa (mbar) VARCHAR, Molecules / cm 3 VARCHAR, Molecules / m 3 VARCHAR, Mean free path VARCHAR) CREATE TABLE summary_of_general_election_performance (summary_of_general_election_performance_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Number of Candidates INT, Total votes INT, Average voters per candidate INT, Percentage of vote VARCHAR, Saved deposits INT, Change (percentage points) VARCHAR, Number of MPs INT) CREATE TABLE men's (men's_id AUTO_INCREMENT PRIMARY KEY, Skip VARCHAR, Third/Vice skip VARCHAR, Second VARCHAR, Lead VARCHAR, City VARCHAR) CREATE TABLE record_by_competition (record_by_competition_id AUTO_INCREMENT PRIMARY KEY, Competition VARCHAR, Played INT, Millwall wins INT, Drawn INT, West Ham wins INT, Millwall goals INT, West Ham goals INT) CREATE TABLE round_of_16 (round_of_16_id AUTO_INCREMENT PRIMARY KEY, Home team VARCHAR, Home team score VARCHAR, Away team VARCHAR, Away team score VARCHAR, Ground VARCHAR, Crowd INT, Date VARCHAR, Time VARCHAR)  
SELECT Away team score FROM round_of_16 WHERE Home team = sydney